co·​in·​ci·​den·​tal | \(ˌ)kō-ˌin(t)-sə-ˈden-tᵊl \

Definition of coincidental 

1 : resulting from a coincidence a coincidental resemblance

2 : occurring or existing at the same time coincidental deaths

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Examples of coincidental in a Sentence

The fact that he and his boss went to the same college was purely coincidental. the nearly coincidental deaths of Princess Diana and Mother Teresa

Recent Examples on the Web

But a new report from the Mail on Sunday revealed that the photos weren’t coincidental — they were staged. Diana Pearl,, "Meghan Markle's Half-Sister Admits She Arranged for Their Dad to Pose for Staged Photos," 14 May 2018 The Gone Girl vibes in this series aren't coincidental. Christopher Rosa, Glamour, "Amy Adams' New HBO Show Looks Like a Creepy Mix of 'Big Little Lies' and 'Gone Girl'," 23 Apr. 2018 Ring is also running for chief financial officer but swears that the timing of the book release is coincidental. Dan Sweeney,, "Power Lunch: Four amendments on 2018 ballot and counting," 24 Jan. 2018 The bracket is the outcome of a series of coincidental and unexpected results. Brian Straus,, "World Cup's Knockout Bracket Sets Up One-Sided Gauntlet for Many Favorites," 28 June 2018 Davis and Jones insisted the timing of each exit was coincidental and not tied to the recent problems. Matt Rocheleau,, "After an $18m overhaul, one Steamship Authority boat reeked of sewage. Then things got worse," 26 May 2018 In comparison, more and more weird details — coincidental or not — keep coming up in connection with the other companies. Sarah Jeong, The Verge, "Net neutrality, mergers, AT&T, and Michael Cohen: what we know so far," 9 May 2018 Maybe the 1990s usefulness of the Phillips curve rule of thumb was an aberration related to coincidental economic factors that had little cause-effect relationship. WSJ, "Was the Phillips Curve Ever a Reliable Tool?," 9 May 2018 The timing of those twin pronouncements was almost assuredly coincidental. Chris Cillizza, CNN, "Ty Cobb's departure tells you all you need to know about Trump's new approach to Robert Mueller," 2 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coincidental.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of coincidental

circa 1800, in the meaning defined at sense 1

History and Etymology for coincidental

coincident + -al entry 1

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Last Updated

8 Oct 2018

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Time Traveler for coincidental

The first known use of coincidental was circa 1800

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English Language Learners Definition of coincidental

: happening because of a coincidence : not planned

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